Fix useListData so that reorder operations are correctly inserted at the correct index (#3724)
* Fix useListData move operation logic
specifically fix it for cases where the user is reordering a set of sequential items and is moving it to a drop position one below the last item being moved
* Update packages/@react-stately/data/src/useListData.ts
Co-authored-by: Devon Govett <devongovett@gmail.com>
Co-authored-by: Devon Govett <devongovett@gmail.com>